54 lines
1.8 KiB
Java
54 lines
1.8 KiB
Java
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package pm.c7.scout;
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import com.unascribed.lib39.core.api.AutoMixin;
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import org.objectweb.asm.Type;
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import org.objectweb.asm.tree.AnnotationNode;
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import org.objectweb.asm.tree.ClassNode;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.spongepowered.asm.mixin.extensibility.IMixinInfo;
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import pm.c7.scout.mixinsupport.ClassNodeTransformer;
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import java.util.HashMap;
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import java.util.Map;
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// "you could also embrace chaos" --Una
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// https://git.sleeping.town/unascribed/Yttr/src/branch/1.19.2/src/main/java/com/unascribed/yttr/YttrMixin.java
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public class ScoutMixin extends AutoMixin {
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private static final Logger LOGGER = LoggerFactory.getLogger("Scout:MixinPlugin");
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public @interface Transformer {
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Class<? extends ClassNodeTransformer> value();
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}
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private final Map<String, ClassNodeTransformer> transformers = new HashMap<>();
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@Override
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protected boolean shouldMixinBeSkipped(String name, ClassNode node) {
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if (name.endsWith("Transformer")) {
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return true;
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}
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return super.shouldMixinBeSkipped(name, node);
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}
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@Override
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protected boolean shouldAnnotationSkipMixin(String name, AnnotationNode an) {
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if (an.desc.equals("Lpm/c7/scout/ScoutMixin$Transformer;")) {
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var params = decodeAnnotationParams(an);
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Type type = (Type)params.get("value");
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try {
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transformers.put(name, (ClassNodeTransformer) Class.forName(type.getClassName()).newInstance());
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} catch (Exception e) {
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LOGGER.error("Transformer class for mixin {} not found", name, e);
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}
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}
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return super.shouldAnnotationSkipMixin(name, an);
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}
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@Override
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public void postApply(String targetClassName, ClassNode targetClass, String mixinClassName, IMixinInfo mixinInfo) {
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transformers.getOrDefault(mixinClassName, (s, cn) -> {}).transform(targetClassName, targetClass);
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super.postApply(targetClassName, targetClass, mixinClassName, mixinInfo);
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}
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}
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